<template>
	<view>
		<view class="feedback-title">
			意见反馈
		</view>
		<view class="feedback-content">
			<textarea class="feedback-textarea" v-model="content" placeholder="请输入您要反馈的问题" />
			</view>
		<view class="feedback-title">
			反馈图片:
		</view>
		<view class="feedback-image-box">
			
			<view class="feedback-image-item" v-for="(item, index) in imageList" :key="index">
				<view class="close-icon" @click="del(index)">
					<uni-icons type="closeempty" size="18" color="#fff"></uni-icons>
				</view>
				<view class="image-box">
					<image :src="item.url" mode="aspectFill"></image>
				</view>
			</view>
			
			<view v-if="imageList.length < 5" class="feedback-image-item" @click="addImage">
				<view class="image-box">
					<uni-icons type="plusempty" size="50" color="#eee"></uni-icons>
				</view>
			</view>
			
		</view>
		
		<button class="feedback-button" type="primary" @click="submit">提交反馈意见</button>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				imageList: [],
				content: ''
			}
		},
		methods: {
			// 上传
			async submit(){
				let imagesPath = []
				uni.showLoading()
				for(let i=0; i<this.imageList.length; i++){
					const filePath = this.imageList[i].url
					filePath = await this.uploadFiles(filePath)
					imagesPath.push(filePath)
				}
				
				this.updateFeedback({
					content: this.content,
					feedbackImages: imagesPath
				})
				
			},
			async uploadFiles(filePath){
				const result = await uniCloud.uploadFile({
					filePath,
					cloudPath: '2.jpg'
				})
				return result.fileID
			},
			updateFeedback({content, feedbackImages}){
				this.$api.update_feedback({
					content,
					feedbackImages
				}).then(res=>{
					uni.hideLoading()
					uni.showToast({
						title: '提交成功',
						icon: 'none'
					})
					setTimeout(()=>{
						uni.switchTab({
							url: '/pages/tabbar/my/my'
						})
					}, 2000)
				}).catch(err=>{
					uni.hideLoading()
					uni.showToast({
						title: '提交失败',
						icon: 'none'
					})
				})
			},
			// 删除图片
			del(index){
				this.imageList.splice(index,1)
			},
			// 添加图片
			addImage(){
				let _this = this
				const count = 5 - this.imageList.length
				uni.chooseImage({
					count: count, //最多运行上传几张图片
					success(res){
						const {tempFilePaths} = res
						tempFilePaths.forEach((item, index) =>{
							// 处理 h5 多选的状况
							if(index<count){
								_this.imageList.push({
									url: item
								})
							}
							
						})
						// console.log(_this.imageList)
					}
				})
			}
		}
	}
</script>

<style lang="scss">
.feedback-title{
	margin: 15px;
	margin-bottom: 0;
	font-size: 14px;
	color: #666;
}

.feedback-content{
	margin: 15px;
	padding: 10px;
	box-sizing: border-box;
	border: 1px solid #eee;
	
	.feedback-textarea{
		font-size: 12px;
		width: 100%;
		height: 100px;
	}
}

.feedback-image-box{
	display: flex;
	flex-wrap: wrap;
	padding: 10px;
	.feedback-image-item{
		position: relative;
		width: 33.33%;
		height: 0;
		padding-top: 33.33%;
		box-sizing: border-box;
		
		.image-box{
			display: flex;
			justify-content: center;
			align-items: center;
			position: absolute;
			top: 5px;
			left: 5px;
			right: 5px;
			bottom: 5px;
			border: 1px solid #eee;
			border-radius: 5px;
			overflow: hidden;
			image{
				width: 100%;
				height: 100%;
			}
		}
		
		.close-icon{
			position: absolute;
			right: 0;
			top: 0;
			width: 22px;
			height: 22px;
			border-radius: 50%;
			display: flex;
			justify-content: center;
			align-items: center;
			background-color: #ff5a5f;
			z-index: 2;
		}
	}
}

.feedback-button{
	margin:0 15px;
	background-color: $mk-base-color;
}

</style>
